Base | Representation |
---|---|
bin | 111100010010… |
… | …1110010010101 |
3 | 2012111001120210 |
4 | 1320211302111 |
5 | 31043041203 |
6 | 3045320033 |
7 | 532461264 |
oct | 170456225 |
9 | 65431523 |
10 | 31612053 |
11 | 16931670 |
12 | a706019 |
13 | 671a975 |
14 | 42ac5db |
15 | 2b96803 |
hex | 1e25c95 |
31612053 has 16 divisors (see below), whose sum is σ = 46098432. Its totient is φ = 19110000.
The previous prime is 31612043. The next prime is 31612069. The reversal of 31612053 is 35021613.
It is not a de Polignac number, because 31612053 - 210 = 31611029 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31612013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15228 + ... + 17178.
It is an arithmetic number, because the mean of its divisors is an integer number (2881152).
Almost surely, 231612053 is an apocalyptic number.
31612053 is a gapful number since it is divisible by the number (33) formed by its first and last digit.
It is an amenable number.
31612053 is a deficient number, since it is larger than the sum of its proper divisors (14486379).
31612053 is a wasteful number, since it uses less digits than its factorization.
31612053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2456.
The product of its (nonzero) digits is 540, while the sum is 21.
The square root of 31612053 is about 5622.4596930525. The cubic root of 31612053 is about 316.1920166366.
Adding to 31612053 its reverse (35021613), we get a palindrome (66633666).
The spelling of 31612053 in words is "thirty-one million, six hundred twelve thousand, fifty-three".
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